Here are some Library of Congress Subject Headings and Dewey Classification Correlations Alan Moore's work falls under:

• Comic books, strips, etc.
• Comic books, strips, etc.--England.
• Comic books, strips, etc.--Great Britain.
• Comic books, strips, etc.--United States.
• Science fiction comic books, strips, etc.
  
• Superhero comic books, strips, etc. 
• Comic books, strips, etc.--Technique.
• Comic books, strips, etc.--United States.
  

Here are some Library of Congress Subject Headings and Dewey Classification Correlations critical and theoretical work regarding Alan Moore may fall under:

• Comic books, strips, etc.--Criticism and interpretation.
• Comic books, strips, etc.--History and criticism.
• Comic books, strips, etc.--England--History and criticism.
  
• Comic books, strips, etc.--Great Britain--History and criticism.
• Comic books, strips, etc.--United States--History and criticism.
  
• Comic books, strips, etc--Influence on mass media.
  
• Comic books, strips, etc.--Moral and ethical aspects.
  
• Comic books, strips, etc--Political aspects.
• Comic books, strips, etc--Psychological aspects.
• Comic books, strips, etc.--Social aspects.
• Comic books, strips, etc.--Social aspects--United States.
• Comic books, strips, etc.--Themes, motives.
• Comic strip characters--United States.
• Comic strip characters in motion pictures.
• Comic, The--History
• Comic, The, in literature
  

Here is a Library of Congress subject heading that does NOT correlate with any of Alan Moore's work to date:

• Comic books, strips, etc.--Juvenile literature. (Alan Moore's work is typically not particularly appropriate for children.)